java.security

Class ProtectionDomain

public class ProtectionDomain extends Object

This class represents a group of classes, along with their granted permissions. The classes are identified by a {@link CodeSource}. Thus, any class loaded from the specified {@link CodeSource} is treated as part of this domain. The set of permissions is represented by an instance of {@link PermissionCollection}.

Every class in the system will belong to one and only one ProtectionDomain.

Constructor Summary
	ProtectionDomain(CodeSource codesource, PermissionCollection permissions) Initializes a new instance of `ProtectionDomain` representing the specified {@link CodeSource} and set of permissions.
	ProtectionDomain(CodeSource codesource, PermissionCollection permissions, ClassLoader classloader, Principal[] principals) This method initializes a new instance of `ProtectionDomain` given its {@link CodeSource}, granted permissions, associated {@link ClassLoader} and {@link Principal}s.

Method Summary
ClassLoader	getClassLoader() Returns the {@link ClassLoader} of this domain.
CodeSource	getCodeSource() Returns the {@link CodeSource} of this domain.
PermissionCollection	getPermissions() Returns the {@link PermissionCollection} of this domain.
Principal[]	getPrincipals() Returns a clone of the {@link Principal}s of this domain.
boolean	implies(Permission permission) Tests whether or not the specified {@link Permission} is implied by the set of permissions granted to this domain.
String	toString() Returns a string representation of this object.

Constructor Detail

ProtectionDomain

public ProtectionDomain(CodeSource codesource, PermissionCollection permissions)

Initializes a new instance of ProtectionDomain representing the specified {@link CodeSource} and set of permissions. No permissions can be added later to the {@link PermissionCollection} and this contructor will call the setReadOnly method on the specified set of permissions.

Parameters: codesource The {@link CodeSource} for this domain. permissions The set of permissions for this domain.

ProtectionDomain

public ProtectionDomain(CodeSource codesource, PermissionCollection permissions, ClassLoader classloader, Principal[] principals)

This method initializes a new instance of ProtectionDomain given its {@link CodeSource}, granted permissions, associated {@link ClassLoader} and {@link Principal}s.

Similar to the previous constructor, if the designated set of permissions is not null, the setReadOnly method is called on that set.

Parameters: codesource The {@link CodeSource} for this domain. permissions The permission set for this domain. classloader the ClassLoader associated with this domain. principals the array of {@link Principal}s associated with this domain.

Since: 1.4